<template>
	<section>
		<!--工具条-->
		<el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
			<el-form :inline="true" >
				<el-form-item>
					<el-input v-model="keywork" placeholder="姓名"></el-input>
				</el-form-item>
				<el-form-item>
					<el-button type="primary" @click="keyworkQuery">查询</el-button>
				</el-form-item>
				<el-form-item>
					<el-button type="primary" @click="handleAdd">新增</el-button>
				</el-form-item>
			</el-form>
		</el-col>

		<!--列表-->
		<el-table :data="departments" highlight-current-row v-loading="listLoading" @selection-change="selsChange" style="width: 100%;">
			<el-table-column type="selection" width="55">
			</el-table-column>
			<el-table-column type="index" width="60">
			</el-table-column>
			<el-table-column prop="name" label="姓名" width="120">
			</el-table-column>
			<el-table-column prop="sn" label="部门编号" width="100"  >
			</el-table-column>
			<el-table-column prop="dirPath" label="部门路径" width="100" >
			</el-table-column>
			<el-table-column prop="state" label="状态" width="120" sortable>
        <template scope="scope">
          <span style="color: #11b95c" v-if="scope.row.state">启用</span>
          <span style="color: red" v-else>禁用</span>
        </template>
			</el-table-column>
			<el-table-column prop="employee.username" label="部门经理" width="180" >
			</el-table-column>
			<el-table-column  label="上级部门" width="180" >
        <template scope="scope">
          <span style="color: pink" v-if="scope.row.parent">{{scope.row.parent.name}}</span>
          <span style="color: gray" v-else>无上级部门</span>
        </template>
			</el-table-column>
			<el-table-column label="操作" width="150">
				<template scope="scope">
					<el-button size="small" @click="handleSave(scope.$index, scope.row)">编辑</el-button>
					<el-button type="danger" size="small" @click="handleDel(scope.$index, scope.row)">删除</el-button>
				</template>
			</el-table-column>
		</el-table>

		<!--工具条-->
		<el-col :span="24" class="toolbar">
			<el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0">批量删除</el-button>
			<el-pagination layout="prev, pager, next"
                     @current-change="handleCurrentChange"
                     :page-size="pageSize"
                     :total= "totals"
                     :current-page="currentPage"
                     style="float:right;">
			</el-pagination>
		</el-col>

		<!--编辑界面-->
		<el-dialog :title="title" :visible.sync="saveFormVisible" :close-on-click-modal="false">
			<el-form :model="saveForm" label-width="80px" :rules="saveFormRules" ref="saveForm">

        <el-form-item label="姓名" prop="name">
					<el-input v-model="saveForm.name" auto-complete="off"></el-input>
				</el-form-item>

        <el-form-item label="部门编号" prop="sn">
					<el-input v-model="saveForm.sn" auto-complete="off"></el-input>
				</el-form-item>

				<el-form-item label="状态">
					<el-radio-group v-model="saveForm.state">
						<el-radio class="radio" :label="1">启用</el-radio>
						<el-radio class="radio" :label="0">禁用</el-radio>
					</el-radio-group>
        </el-form-item>

        <!--
        下拉框的显示：
          v-for="item in managers" + 2个span
        回显机制：
          1.先根据v-model="saveForm.manager_id"中的manager_id从managers中找到回显哪一个对象
          2.但是对象中有很多属性，再通过:label="item.username" - 回显对象的username
        传值机制：
          1.当你选中某一个部门经理的时候，:value="item.id"  它会把选中对象的id
          2.赋值给v-model="saveForm.manager_id"中的manager_id
      -->
        <el-form-item label="部门经理" prop="manager_id">
          <el-select v-model="saveForm.manager_id" placeholder="请选择">
            <el-option
                v-for="item in managers"
                :label="item.username"
                :value="item.id">
              <span style="float: left">{{ item.username }}</span>
              <span style="float: right; color: #8492a6; font-size: 13px">{{ item.phone }}</span>
            </el-option>
          </el-select>
        </el-form-item>

        <el-form-item label="上级部门" prop="parent_id">
          <el-cascader v-model="saveForm.parent_id"
                       :options="deptTree"
                       :props="{ checkStrictly: true,
                        label: 'name', // 级联框显示那个属性的值
                        value: 'id'    // 回显时需要,回传值的时候也需要
          }"
                       clearable></el-cascader>
        </el-form-item>


      </el-form>
			<div slot="footer" class="dialog-footer">
				<el-button @click.native="saveFormVisible = false">取消</el-button>
				<el-button type="primary" @click.native="saveSubmit" :loading="saveLoading">提交</el-button>
			</div>
		</el-dialog>


	</section>
</template>

<script>
	

	export default {
		data() {
			return {
        managers:[],
        departments: [],
        totals: 0,
        currentPage:1,
        pageSize:5,
        listLoading: false,
			  //高级查询查询参数
			  keywork:'',
        //批量删除
        sels: [],
        deptTree:[],

        //添加与修改
        title:'',
        saveFormVisible: false,//控制对话框是否显示 - 默认不显示
        saveLoading: false,    //加载框

				saveFormRules: {
          //表单项中的prop属性
          name: [
						{ required: true, message: '请输入姓名', trigger: 'blur' }
					],
          sn: [
						{ required: true, message: '请输入部门编号', trigger: 'blur' }
					],
				},
				//编辑界面数据
				saveForm: {
          id: null,
          name: '',
          sn: '',
          state: 1,
          manager_id: null,
          parent_id: null
				},



			}
		},
		methods: {
		  //1.分页查询
      handleCurrentChange(val){
        this.currentPage=val;
        this.getDepartments();
      },
     // 2.前端：点击查询发送异步请求，传高级查询的参数和分页参数【高级查询的结果也要分页】
      keyworkQuery(){
         //防止高级查询时查询出为空的现象【当前是第5页，但是高级查询的结果没有5页】
        this.currentPage=1;

        this.getDepartments();


      },

     //3. //分页的实现
		  getDepartments(){
		    //组装参数
        let para= {
		      currentPage:this.currentPage,
          pageSize:this.pageSize,
           keywork:this.keywork,
        };
        this.listLoading=true
        this.$http.post("/department",para).then(res=>{
             this.totals= res.data.totals;

                 this.departments =res.data.data;
                 this.listLoading=false;
        }).catch(res=>{

             this.$message.error("网络繁忙，请检查网络")
        })


      },


			//4.删除
			handleDel: function (index, row) {
				this.$confirm('确认删除该记录吗?', '提示', {
					type: 'warning'
				}).then(() => {
					this.listLoading = true;
					//NProgress.start();
					this.$http.delete(/department/+row.id).then(res=>{
					  this.listLoading=false;
					  //通过后端反馈数据判断是否删除成功
					  if(res.data.success){
					    this.$message.success("删除成功")
               var totalPage = Math.ceil(this.totals/this.pageSize);

					    if(this.currentPage==totalPage && (this.totals-1)%this.pageSize==0 && this.currentPage!=1){
					      this.currentPage=this.currentPage-1;
              }
             //成功调分页查询的方法显示数据
              this.getDepartments();

            }else {
					    this.$message.error("删除失败【500】")
            }

          }).catch(res=>{
            //没有连接到服务器就会走这里，请求地址不对也会走这里
            this.$message.error("系统繁忙，请稍后重试!!!")

          })
				}).catch(() => {

				});
			},
         //5.批量删除
        selsChange:function (sels){

         this.sels=sels;
        },
        //6.批量删除
      batchRemove: function () {
        var ids = this.sels.map(item => item.id);
        this.$confirm('确认删除选中记录吗？', '提示', {
          type: 'warning'
        }).then(() => {
          this.listLoading = true;
          this.$http.patch("/department",ids).then(res=>{
            this.listLoading = false;
            if(res.data.success){
              this.$message.success("删除成功");
              this.currentPage=1;
              this.getDepartments();

            }else {

              this.$message.error("删除失败【500】")
            }

          }).catch(res=>{
            //没有连接到服务器就会走这里，请求地址不对也会走这里
            this.$message.error("系统繁忙，请稍后重试!!!")

          })
        }).catch(() => {

        });
      },

       //7.修改与添加

      //显示编辑界面
			handleSave: function (index, row) {
        console.log(row)
				this.title="修改";
        this.saveFormVisible = true;
				this.saveForm = Object.assign({}, row);
        this.getManagers();
        this.getDeptTree()
			},
			//8.显示新增界面
			handleAdd: function () {
        this.title="添加";

				this.saveFormVisible = true;
				this.saveForm = {
          name: '',
          sn: '',
          state: 1,
          manager_id: null,
          parent_id: null,

				};
        this.getManagers();
        this.getDeptTree()
			},
			//9点击提交数据
			saveSubmit: function () {
				this.$refs.saveForm.validate((valid) => {
					if (valid) {
						this.$confirm('确认提交吗？', '提示', {}).then(() => {
							this.saveLoading = true;
							//NProgress.start();
							let para = Object.assign({}, this.saveForm);
              // //前端无限级树的处理：null，[],[2],[2,5],2
							if(para.parent_id == null || para.parent_id.length==0){
							  para.parent_id == null;
              }else if(para.parent_id.length){//有值，没有报错，数组[2],[2,5]

							  para.parent_id=para.parent_id[para.parent_id.length-1]
              }
							//发送请求
							this.$http.put("/department",para).then(res=>{

               //关闭加载框
                this.saveLoading = false;
							  //关闭对话框
                this.saveFormVisible=false;
							  if(res.data.success){
							    this.$message.success("操作成功")
                  this.getDepartments();
                }else {
							    this.$message.error("操作失败")
                }
              }).catch(res=>{
                this.$message.error("系统异常")
              })
						});
					}
				});
			},
       //10.下拉框实现
      //获取所有经理
         getManagers(){
        this.$http.get("/employee").then(res=>{
          //将所有的员工赋值给managers
          this.managers=res.data
        })
         },
      //11.获取所有的部门
      getDeptTree(){
        this.$http.get("/department/deptTree").then(res=>{
          this.deptTree= res.data;

        })
      }

		},
		mounted() {
			this.getDepartments();

		}
	}

</script>

<style scoped>

</style>